Finding the Fourth Proportional to 9,486,321.35, 13,091,120.70 and 5,135,404.46
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Solution
The fourth proportional to 9,486,321.35, 13,091,120.70 and 5,135,404.46 is: 7,086,856.66
Step by Step Solution
- Step 1: Write the proportion equation
9,486,321.35 : 13,091,120.70 = 5,135,404.46 : x - Step 2: Convert to fraction form
9,486,321.35/13,091,120.70 = 5,135,404.46/x - Step 3: Cross multiply
9,486,321.35x = 13,091,120.70 × 5,135,404.46 - Step 4: Simplify right side
9,486,321.35x = 67,228,199,622,443.30 - Step 5: Solve for x
x = 67,228,199,622,443.30/9,486,321.35 - Step 6: Final answer
x = 7,086,856.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.